Simplify (-2x3)2 · y · y9. a) -4x6y8 b) -4x4y8 c) 4x6y10 d) -4x4y10

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Find the cocordinatse of the point on y axis which is nearest to the point (-2,5)